Compact density meter DIMF series

concentrationfor liquidsmeasuring device

Overview
Continuous measurement of density and concentration is essential for process control and product quality assurance. The DIMF density and concentration meters provide high-precision, maintenance‑friendly measurement solutions for liquids, suspensions and aggressive media across multiple industries.

Application

• Continuous density and concentration monitoring
• Mass flow measurement and fiscal/custody transfer applications
• Quality control, product recognition and batch monitoring
• Dosing, injection and blending of additives
• Process control for distillation, filtration, sedimentation, mixing and fermentation
• Measurement of solids in liquids, foams and suspensions; wastewater monitoring

General technical data
Nominal sizes: DN6 to DN50 (series range)
Process connections: Flanges, Swagelok, sanitary threads, sterile fittings
Materials: Stainless steel (1.4571 / 316 Ti), special NiFeCr alloy, Hastelloy, Tantalum, Monel, Inconel, 304L
Density range: typical 400 to 3,000 kg/m³ (models and custom versions up to 5,000 kg/m³)
Accuracy: model dependent, up to ±0.01% (other models ±0.02% or ±0.1%)
Repeatability: up to ±0.005%
Process temperature: -40°C to +210°C depending on model
Process pressure: up to 300 bar depending on version
Outputs: 4–20 mA (2‑wire), frequency output, RS232, UART, PT100 temperature output
Ex-protection: flameproof or intrinsically safe options available

Characteristics (general)

• High repeatability and long‑term stability
• Low maintenance / maintenance‑free designs
• Measurement independent of flow rate

Special features (general)

• Customer‑specific calibrations and 400‑point correction tables
• Custody transfer capable (DIMF 1.3 evaluation certificates available)
• Versions for aggressive liquids, pastes, foams and seal‑free designs
• Scalable output signals for density, concentration, °Brix, °Plato
• Wide choice of process materials and connections

Product series: DIMF — available variants
DIMF 1.3, DIMF 2.0, DIMF 2.1, DIMF Compact and custom piped units with different mechanical sizes, materials and electronics options.

DIMF 1.3 — Technical data
Nominal size: 10 mm
Process connection: Internal thread G ¼ ISO 228; flanges DN10 PN40 (or ANSI Class 150/300 RF) available
Material: Special NiFeCr alloy and 1.4571 / 316 Ti
Density range: 400 to 3,000 kg/m³
Calibration range: 400 to 1,450 kg/m³
Accuracy: up to ±0.01% (±0.1 kg/m³)
Repeatability: up to ±0.005%
Process temperature: -40°C to +100°C
Process pressure: 100 bar
Outputs: 2‑wire 4–20 mA for operating/reference density, concentration, °Brix, °Plato; preamplifier options with vibration frequency output and PT100 temperature output
Ex-protection: flameproof or intrinsically safe options

DIMF 1.3 — Special features & characteristics

• High measurement accuracy and 2‑wire technology
• Suitable for custody transfer and certified applications
• Seal‑free versions and material certificates available
• Direct measurement of density, reference density or concentration

DIMF 2.0 — Technical data
Nominal size: 10 mm
Process connection: Internal thread G ¼ ISO 228; flanges DN10 PN40 (or ANSI Class 150/300 RF) available
Material: NiFeCr alloy and 1.4571 / 316 Ti (Hastelloy, Tantalum, Inconel options)
Density range: 400 to 3,000 kg/m³
Calibration range: 400 to 1,450 kg/m³
Accuracy: up to ±0.02% (±0.2 kg/m³)
Repeatability: up to ±0.005%
Process temperature: -40°C to +150°C (up to +210°C on request)
Process pressure: 100 bar (160 bar on request)
Outputs: 2‑wire 4–20 mA; preamplifier options for frequency output and PT100 temperature output
Ex-protection: flameproof or intrinsically safe options

DIMF 2.0 — Special features & characteristics

• Robust design for harsh industrial environments
• Wide material options and high stability
• Measurement independent of flow rate; seal‑free variants

DIMF 2.1 — Technical data
Nominal size: 25 mm (also DN50 for some versions)
Process connection: DN25 PN40 / DN50 PN40 (DIN / ANSI flanges)
Material: Stainless steel 1.4571 / 316 Ti
Density range: 400 to 3,000 kg/m³
Calibration range: 400 to 1,450 kg/m³
Accuracy: better than ±0.02%
Repeatability: better than ±0.005%
Process temperature: -40°C to +150°C
Process pressure: typically 40 bar
Outputs: 4–20 mA for density/concentration, PT100 temperature output; preamplifier options
Ex-protection: flameproof or intrinsically safe options

DIMF Compact — Technical data
Nominal size: smallest inside diameter approx. 2 × 7 mm
Process connection: Internal thread G ¼ via quick mounting block
Material: Stainless steel 1.4571 / 316 Ti
Density range: 500 to 1,500 kg/m³
Accuracy: up to ±0.1% (±1 kg/m³)
Repeatability: up to ±0.02%
Process temperature: 0°C to +80°C
Process pressure: 6 bar
Output: 24 V supply; density and temperature via RS232 or UART
Ex-protection: not available for Compact standard version

Density measuring device (custom / piped units) — Technical data
Nominal sizes and connections configurable (example: 10 mm, Swagelok 12 mm, flanges DN15/DN25)
Material: stainless steel or selected alloys
Density range: up to 5,000 kg/m³ depending on configuration
Calibration range and accuracy configurable; repeatability up to ±0.005%
Process temperature/pressure and outputs adapted per customer specification
Ex-protection and custody transfer options available on request

Technical specifications (summary)

• Series: DIMF 1.3, DIMF 2.0, DIMF 2.1, DIMF Compact, custom units
• Density range: typ. 400–3,000 kg/m³ (compact and custom variants vary)
• Accuracy: up to ±0.01% (model dependent)
• Repeatability: up to ±0.005%
• Process temperature: model dependent (typ. -40°C to +150/210°C)
• Process pressure: up to 300 bar depending on version
• Outputs: 4–20 mA, frequency, RS232, UART, PT100; Ex options available